CN203047086U - Automobile roof rail - Google Patents
Automobile roof rail Download PDFInfo
- Publication number
- CN203047086U CN203047086U CN 201320012187 CN201320012187U CN203047086U CN 203047086 U CN203047086 U CN 203047086U CN 201320012187 CN201320012187 CN 201320012187 CN 201320012187 U CN201320012187 U CN 201320012187U CN 203047086 U CN203047086 U CN 203047086U
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- CN
- China
- Prior art keywords
- roof rail
- notch
- cross bar
- twice
- pointed
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The utility model discloses an automobile roof rail. The automobile roof rail overcomes the defects of increase of automobile running resistance caused by a poor structure of a cross section face of a roof rail of an automobile. The automobile roof rail is good in aerodynamic performance and structural mechanical properties. The automobile roof rail is made of drawn aluminum profile, the sectional face of the drawn aluminum profile is similarly streamline-shaped, the similar streamline shape means that the front end of the sectional face of the aluminum profile is round and the rear end of the sectional face of the aluminum profile is similarly pointed-shaped, and a circular arc transition with a small radius is formed at the tail end of the pointed structure of the similar pointed shape. An installing notch is formed in one side of the similar streamline shape. The automobile roof rail has the advantages of being good in aerodynamic performance, low in weight compared with an automobile roof rail of the same kind, high in compressive strength, large in flexure strength, high in torsional stiffness, convenient to install and smooth in feel.
Description
Technical field
The utility model belongs to the car accessories technical field, is specifically related to a kind of for the automobile roof luggage carrier framing member.
Background technology
It is very general that Modern Car is used for self-driving travel, original luggage compartment just seems not enough for this reason, so the car owner generally sets up top luggage rail, but the structure of top luggage rail produces no small influence to air resistance in travelling, and what wherein have the greatest impact is exactly the cross bar of baggage rack, and cross bar is in the state that laterally goes for a drive, especially when galloping, its resistance not to be sneezed at is so must improve for structure and the shape of existing cross bar.
For example China Patent No. 200620000773.0, name is called the utility model patent of " a kind of baggage rack that reduces windage and belt brake lamp ", a kind of baggage rack that reduces windage and belt brake lamp is disclosed, comprise forward and backward cross bar and the left and right side lever of enclosing a shaped as frame, interconnect by four plastics terminations between the end of cross bar and side lever, be provided with some base plates longitudinally between two cross bars, wherein outermost two base plates fix by attaching parts and roof support.This patent inventor has introduced the bar structure of its baggage rack in the claim 3 of its patent claims, indicate the end face that cross bar has a horizontal bottom, upright medial surface and oblique arc-shaped transition; There is following some bigger defective in this structure, and the first, the rear side of its front rail is vertical surface, and this will make the rear side of front rail produce the low pressure cyclone in running car, and this low pressure cyclone is to front rail generation attractive force backward, and it is mobile forward to hinder front rail; The second, the front side of its rear transverse rod is vertical surface, and this will make the windward side, front side of rear transverse rod be subjected to the impact of high velocity air in running car, increase resistance to motion greatly; The 3rd, the bottom surface of cross bar is a horizontal bottom, the i.e. plane of level, when high velocity air skimmed over from this horizontal bottom, air-flow and this plane were in parastate, and air-flow can't be attached to wall and form the current stabilization form, even can break away from the turbulent flow that horizontal bottom produces fierceness, cause big resistance.
Summary of the invention
The utility model technical issues that need to address are, overcome the bad defective that causes automobile running resistance to increase of car roof cross bar cross section structure of prior art, and a kind of car roof cross bar with good aerodynamic performance and structural mechanical property is provided.
The purpose of this utility model is achieved by following technical proposals:
OnePlant the car roof cross bar, constitute by drawing aluminium section bar, the section form of described aluminium section bar is approximate streamline contour, and described approximate streamline contour refers to that front end is pointed for being similar to for the circle rear end, the described approximate pointed arc transition that small radii is arranged for the end of sharp structure; Described approximate streamline contour has a side to be provided with the installation notch.Make the object of relative motion in fluid, it is shaped as preceding circle metacone, smooth surface, omits the shape as water droplet, is called stream line pattern; Learn according to theory derivation and experiment test, resistance of motion and the bluff of streamiline body in fluid, for example front-back all is that the resistance of motion of roundel body in fluid on plane compared, if both areas of conter are identical, then both suffered resistances can differ tens times; Again, the contour structures of circular arc thin-walled is as egg shell, and this structure has the characteristic of thin shell structure, its, its compressive strength height light with specific mass.
As preferably, the inside that notch is installed is provided with the horizontal ribbed and vertical floor of twice, the horizontal ribbed both sides that notch is installed that are in respectively of twice, the horizontal ribbed and vertical floor formation double-tee reinforcement structure of twice.Three road floors are crisscross, and front and back distribute, and the bending strength of cross bar is greatly improved, and the rigidity of the antitorque transformation shape of cross bar is guaranteed fully.
As preferably, have during twice are horizontal ribbed together and form an enclosed cavity with the front end circular portion, other has and together forms another enclosed cavity with the pointed part in rear end, vertically floor and another side of described approximate swept-out and the 3rd enclosed cavity of the horizontal ribbed formation of twice.
As preferably, the both sides that notch is installed respectively are provided with outstanding edge, and described edge is wedge structure.
As preferably, notch to be installed to be provided with cover plate, cover plate is stuck in the edge that notch is installed, and the edge lateral surface of the lateral surface of cover plate and installation notch is to flat.
The beneficial effects of the utility model are:
1, have approximate swept-out contour structures, the gas kinetics performance is good;
2, the characteristic that has thin shell structure is light with specific mass, compressive strength is high;
3, three road floors are crisscross, and front and back distribute, and bending strength is big, the torsion stiffness height;
4, easy for installation, feel is submissive.
Description of drawings
Fig. 1 is the section structure scheme drawing of a kind of embodiment of the utility model;
Fig. 2 is the schematic perspective view of a kind of embodiment of the utility model.
Among the figure, front end 1; Rear end 2; Arc transition 3; Notch 4 is installed; Edge 41; Horizontal ribbed 5; Vertical floor 6.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment: as shown in Figure 1, 2,
OnePlant the car roof cross bar, constitute by drawing aluminium section bar, the section form of described aluminium section bar is approximate streamline contour, and described approximate streamline contour refers to that front end 1 is pointed for being similar to for circle rear end 2, the described approximate pointed arc transition 3 that small radii is arranged for the end of sharp structure; Approximate streamline contour has a side to be provided with installation notch 4.Resistance of motion and the bluff of streamiline body in fluid, for example front-back all is that the resistance of motion of roundel body in fluid on plane compared, if both areas of conter are identical, then both suffered resistances can differ tens times; Again, the contour structures of circular arc thin-walled is as egg shell, and this structure has the characteristic of thin shell structure, its, its compressive strength height light with specific mass.
The inside that notch 4 is installed is provided with twice horizontal ribbed 5 with vertical floor 6, and twice horizontal ribbed 5 are in the both sides that notch 4 is installed respectively, and twice horizontal ribbed 5 constitute double-tees with vertical floor 6 and strengthen structure.Three road floors are crisscross, and front and back distribute, and the bending strength of cross bar is greatly improved, and the rigidity of the antitorque transformation shape of cross bar is guaranteed fully.
Have in the twice horizontal ribbed 5 together and form an enclosed cavity with front end 1 circular portion, other has and together forms another enclosed cavity with rear end 2 pointed parts, and vertically floor 6 forms the 3rd enclosed cavity with another side of described approximate swept-out and twice horizontal ribbed 5.
The both sides that notch 4 is installed respectively are provided with outstanding edge 41, and each edge all is wedge structure; Notch is installed is provided with cover plate, the dual-side of cover plate is stuck in the edge that notch is installed, and the edge lateral surface of the lateral surface of cover plate and installation notch is to flat.
The utility model can be used for the car roof cross bar, have the gas kinetics performance good, with specific mass light and compressive strength is high, bending strength is big, torsion stiffness is high, easy for installation, the advantage that feel is submissive, if those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, and all will be included within the scope of claim of the present utility model the apparent modification of those skilled in the art like this.
Claims (5)
1.
OnePlant the car roof cross bar, constitute by drawing aluminium section bar, it is characterized in that, the section form of described aluminium section bar is approximate streamline contour, described approximate streamline contour refers to that front end is pointed for being similar to for the circle rear end, the described approximate pointed arc transition that small radii is arranged for the end of sharp structure; Described approximate streamline contour has a side to be provided with the installation notch.
2. according to claim 1
OnePlant the car roof cross bar, it is characterized in that, it is horizontal ribbed with vertical floor that the inside of installation notch is provided with twice, the horizontal ribbed both sides that notch is installed that are in respectively of twice, and twice are horizontal ribbed with vertical floor formation double-tee reinforcement structure.
3. according to claim 1 and 2
OnePlant the car roof cross bar, it is characterized in that, have during twice are horizontal ribbed together and form an enclosed cavity with the front end circular portion, other has and together forms another enclosed cavity with the pointed part in rear end, vertically floor and another side of described approximate swept-out and the 3rd enclosed cavity of the horizontal ribbed formation of twice.
4. according to claim 3
OnePlant the car roof cross bar, it is characterized in that, the both sides that notch is installed respectively are provided with outstanding edge, and described edge is wedge structure.
5. according to claim 4
OnePlant the car roof cross bar, it is characterized in that, notch is installed is provided with cover plate, cover plate is stuck in the edge that notch is installed, and the edge lateral surface of the lateral surface of cover plate and installation notch is to putting down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012187 CN203047086U (en) | 2013-01-10 | 2013-01-10 | Automobile roof rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012187 CN203047086U (en) | 2013-01-10 | 2013-01-10 | Automobile roof rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203047086U true CN203047086U (en) | 2013-07-10 |
Family
ID=48730073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012187 Expired - Fee Related CN203047086U (en) | 2013-01-10 | 2013-01-10 | Automobile roof rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203047086U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838634A (en) * | 2017-09-14 | 2018-03-27 | 明达铝业科技(太仓)有限公司 | A kind of loss of weight high intensity top holder structure and its processing method |
| CN108248519A (en) * | 2018-03-15 | 2018-07-06 | 宁波舜江汽车部件制造有限公司 | A kind of roof support cross bar assembly |
| CN109604947A (en) * | 2018-12-04 | 2019-04-12 | 江阴南弘新能源科技有限公司 | Streamlined luggage frame section and its production technology in high precision |
-
2013
- 2013-01-10 CN CN 201320012187 patent/CN203047086U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838634A (en) * | 2017-09-14 | 2018-03-27 | 明达铝业科技(太仓)有限公司 | A kind of loss of weight high intensity top holder structure and its processing method |
| CN108248519A (en) * | 2018-03-15 | 2018-07-06 | 宁波舜江汽车部件制造有限公司 | A kind of roof support cross bar assembly |
| CN109604947A (en) * | 2018-12-04 | 2019-04-12 | 江阴南弘新能源科技有限公司 | Streamlined luggage frame section and its production technology in high precision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20160110 |